Apache2 rewrite doesn´t work - apache

Question

I am making a test with codeigniter and I make this .htaccess:
#Options +FollowSymLinks
#Options -Indexes
DirectoryIndex index.html index.php
RewriteEngine on
RewriteCond $1 !^(index\.php|css|Scripts|images|uploads)
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php?/$1 [L,QSA]
On the config files of apache where is necessary make many changes, I have this (only what I think is important for this case):
/etc/apache2/apache2.conf
<Directory /var/www/>
Options Indexes FollowSymLinks
AllowOverride All
Require all granted
</Directory>
/etc/apache2/site-available/000-default.conf
ServerAdmin webmaster#localhost
DocumentRoot /var/www/html
<Directory />
#Options FollowSymLinks
Options Indexes FollowSymLinks Includes ExecCGI
AllowOverride All
Order deny,allow
Allow from all
</Directory>
The path where the codeigniter is installed is in /var/www/html/test, and if on browser I make http://ejemplo.com/test the wellcome controller of igniter works, but if I try to access to other function on this controller I get a 404 (make by apache, not the 404 from codeigniter).
Do I forget something?? What am I doing wrong??
Thank you.
PS:The codeigniter is an empty and new installation (only a helloworld function on the wellcome controller).